package class1;
import java.lang.Integer;
//java.lang.Math
//public final class Math {
//    public static final double E=2.71344444;
//    public static final double PI=3.14;
//}
final class Character extends  Object implements Comparable<Character>{

    public static final char MIN='\u0000';//char型的最小值
    public static final char MAX='\uffff';//char型的最大值

    @Override
    public int compareTo(Character o) {
        return 0;
    }
}


final class Byte extends Number implements Comparable<Byte>{
    public static final byte MAX=127;
    public static final byte MIN=-128;

    @Override
    public int compareTo(Byte o) {
        return 0;
    }

    @Override
    public int intValue() {
        return 0;
    }

    @Override
    public long longValue() {
        return 0;
    }

    @Override
    public float floatValue() {
        return 0;
    }

    @Override
    public double doubleValue() {
        return 0;
    }
}
